Analysis
- max time kernel
146s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220721-en - resource tags
- submitted
25/07/2022, 20:32
General
- Target NEW PURCHASE ORDER AND SPECIFICATION.exe
- Size 737KB
- Sample220725-za94caabdk
- SHA256 8dc19fdc6a2f27ae650d8868ddf42b3f9f9ce2cd517c74f7ba524656e2a68262
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
uyeco.pw:59066
-
127.0.0.1:59066
-
f8d3f7fb-a017-4255-8ee1-f7099245c62d
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-03-07T13:49:51.938097736Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
59066
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
f8d3f7fb-a017-4255-8ee1-f7099245c62d
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
uyeco.pw
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER AND SPECIFICATION.exe"C:\Users\Admin\AppData\Local\Temp\NEW PURCHASE ORDER AND SPECIFICATION.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tmDJyCIKI.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tmDJyCIKI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDBBA.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmpDBBA.tmp
memory/3000-141-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4164-142-0x0000000005740000-0x0000000005762000-memory.dmp
memory/4164-150-0x00000000071D0000-0x00000000071EA000-memory.dmp
memory/4164-155-0x00000000074F0000-0x00000000074F8000-memory.dmp
memory/4164-137-0x0000000004910000-0x0000000004946000-memory.dmp
memory/4164-154-0x0000000007510000-0x000000000752A000-memory.dmp
memory/4164-140-0x0000000004FC0000-0x00000000055E8000-memory.dmp
memory/4164-153-0x0000000007400000-0x000000000740E000-memory.dmp
memory/4164-152-0x0000000007450000-0x00000000074E6000-memory.dmp
memory/4164-151-0x0000000007240000-0x000000000724A000-memory.dmp
memory/4164-143-0x0000000005920000-0x0000000005986000-memory.dmp
memory/4164-144-0x0000000005990000-0x00000000059F6000-memory.dmp
memory/4164-145-0x0000000005EC0000-0x0000000005EDE000-memory.dmp
memory/4164-146-0x00000000064A0000-0x00000000064D2000-memory.dmp
memory/4164-147-0x0000000070390000-0x00000000703DC000-memory.dmp
memory/4164-148-0x0000000006460000-0x000000000647E000-memory.dmp
memory/4164-149-0x0000000007810000-0x0000000007E8A000-memory.dmp
memory/4496-130-0x0000000000BA0000-0x0000000000C5E000-memory.dmp
memory/4496-131-0x0000000005A50000-0x0000000005FF4000-memory.dmp
memory/4496-132-0x0000000005540000-0x00000000055D2000-memory.dmp
memory/4496-133-0x00000000054C0000-0x00000000054CA000-memory.dmp
memory/4496-134-0x00000000057F0000-0x000000000588C000-memory.dmp